title: [Easy method for infectivity titration of Rickettsia tsutsugamushi by infected cell counting (author's transl)].
mesh_terms: D000818:Animals; D001431:Bacteriological Techniques; D002452:Cell Count; D066298:In Vitro Techniques; D007739:L Cells; D051379:Mice; D012285:Orientia tsutsugamushi / Q000472:pathogenicity*